1# 2# This file is subject to the terms and conditions of the GNU General Public 3# License. See the file "COPYING" in the main directory of this archive 4# for more details. 5# 6# Copyright (C) 2001 - 2005 Tensilica Inc. 7# 8# This file is included by the global makefile so that you can add your own 9# architecture-specific flags and dependencies. Remember to do have actions 10# for "archclean" and "archdep" for cleaning up and making dependencies for 11# this architecture 12 13# Core configuration. 14# (Use CPU=<xtensa_config> to use another default compiler.) 15 16cpu-$(CONFIG_XTENSA_CPU_LINUX_BE) := linux_be 17cpu-$(CONFIG_XTENSA_CPU_LINUX_CUSTOM) := linux_custom 18 19CPU = $(cpu-y) 20export CPU 21 22# Platform configuration 23 24platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 25platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 26 27PLATFORM = $(platform-y) 28export PLATFORM 29 30CPPFLAGS += $(if $(KBUILD_SRC),-I$(srctree)/include/asm-xtensa/) 31CPPFLAGS += -Iinclude/asm 32CFLAGS += -pipe -mlongcalls 33 34KBUILD_DEFCONFIG := iss_defconfig 35 36# ramdisk/initrd support 37# You need a compressed ramdisk image, named ramdisk.gz in 38# arch/xtensa/boot/ramdisk 39 40core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/ 41 42# Test for cross compiling 43 44ifneq ($(CPU),) 45 COMPILE_ARCH = $(shell uname -m) 46 47 ifneq ($(COMPILE_ARCH), xtensa) 48 ifndef CROSS_COMPILE 49 CROSS_COMPILE = xtensa_$(CPU)- 50 endif 51 endif 52endif 53 54# 55 56LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) 57 58head-y := arch/xtensa/kernel/head.o 59core-y += arch/xtensa/kernel/ arch/xtensa/mm/ 60ifneq ($(PLATFORM),) 61core-y += arch/xtensa/platform-$(PLATFORM)/ 62endif 63libs-y += arch/xtensa/lib/ $(LIBGCC) 64 65boot := arch/xtensa/boot 66 67archinc := include/asm-xtensa 68 69archprepare: $(archinc)/.platform 70 71# Update machine cpu and platform symlinks if something which affects 72# them changed. 73 74$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/MARKER 75 @echo ' SYMLINK $(archinc)/xtensa/config -> $(archinc)/xtensa/config-$(CPU)' 76 $(Q)mkdir -p $(archinc) 77 $(Q)mkdir -p $(archinc)/xtensa 78 $(Q)ln -fsn $(srctree)/$(archinc)/xtensa/config-$(CPU) $(archinc)/xtensa/config 79 @echo ' SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)' 80 $(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform 81 @touch $@ 82 83 84all: zImage 85 86bzImage : zImage 87 88zImage zImage.initrd: vmlinux 89 $(Q)$(MAKE) $(build)=$(boot) $@ 90 91CLEAN_FILES += arch/xtensa/vmlinux.lds \ 92 $(archinc)/platform $(archinc)/xtensa/config \ 93 $(archinc)/.platform 94 95define archhelp 96 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' 97endef 98 99